161201379 has 8 divisors (see below), whose sum is σ = 215753472. Its totient is φ = 107058440.

The previous prime is 161201371. The next prime is 161201389. The reversal of 161201379 is 973102161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161201379 - 2³ = 161201371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161201371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101367 + ... + 102944.

It is an arithmetic number, because the mean of its divisors is an integer number (26969184).

Almost surely, 2^161201379 is an apocalyptic number.

161201379 is a deficient number, since it is larger than the sum of its proper divisors (54552093).

161201379 is a wasteful number, since it uses less digits than its factorization.

161201379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204577.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 161201379 is about 12696.5105048592. The cubic root of 161201379 is about 544.2389050774.

The spelling of 161201379 in words is "one hundred sixty-one million, two hundred one thousand, three hundred seventy-nine".